Sodium ferrocyanide
A chemical compound used in various applications
Sodium Ferrocyanide[edit | edit source]
Sodium ferrocyanide, also known as sodium hexacyanoferrate(II), is a chemical compound with the formula Na4[Fe(CN)6]. It is a yellow crystalline solid that is soluble in water and is used in various industrial applications.
Chemical Properties[edit | edit source]
Sodium ferrocyanide is a coordination compound consisting of a ferrous ion surrounded by six cyanide ions, forming a stable complex. The compound is non-toxic and is often used as an anti-caking agent in the food industry, where it is known as E535.
Applications[edit | edit source]
Sodium ferrocyanide is used in several applications:
- Anti-caking agent: It is commonly added to table salt to prevent clumping.
- Pigment production: It is used in the production of Prussian blue, a deep blue pigment.
- Photography: It is used in the cyanotype process, a photographic printing process that produces a cyan-blue print.
- Metal treatment: It is used in the case hardening of steel.
Safety[edit | edit source]
While sodium ferrocyanide is considered non-toxic, it can release hydrogen cyanide gas if exposed to strong acids. Therefore, it should be handled with care, especially in industrial settings.
Related Compounds[edit | edit source]
Sodium ferrocyanide is related to other ferrocyanides, such as potassium ferrocyanide, which have similar structures and properties.
Related pages[edit | edit source]
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